## Description
<!-- Provide a clear and concise description of your changes -->

## Related Issue
<!-- Link to the issue this PR addresses. Use "Fixes #123" or "Closes #123" -->
Fixes #

## Type of Change
<!-- Mark the relevant option with an "x" -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
- [ ] Documentation update
- [ ] Performance improvement
- [ ] Code refactoring

## Changes Made
<!-- List the specific changes you made -->
- 
- 
- 

## Testing
<!-- Describe the tests you ran to verify your changes -->
- [ ] All existing tests pass
- [ ] Added new tests for new functionality
- [ ] Tested on multiple Python versions (if applicable)
- [ ] Tested on multiple operating systems (if applicable)

**Test command:**
```bash
pytest test_compact_tree.py test_marisa_trie.py -v
```

## Checklist
- [ ] My code follows the project's style guidelines
- [ ] I have performed a self-review of my code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my feature works
- [ ] New and existing unit tests pass locally with my changes

## Screenshots (if applicable)
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## Additional Notes
<!-- Any additional information that reviewers should know -->
